00486044

Component

http://onlinepubs.trb.org...trr/1988/1181/1181-003.pdf

https://scholar.google.co...Batz&publication_year=1988

This paper contains the first part of a report that details the findings of 256 past and present high-occupancy-vehicle (HOV) treatments. The procedures followed and the major conclusions found concerning the 19 specific HOV treatment types studied are presented. Some of these conclusions are that only four treatments (park-and-ride lots, separate roadways, contraflow freeway and arterial lanes, and preferential bypasses at metered ramps) produced the impacts that were expected. Another seven treatments either produced mixed results or had no effect, and for the remaining six treatments either no reportable data had been collected or they had never been implemented. Findings concerning specific HOV treatments were as follows: transit malls and automobile-restricted zones must have an operating transit system in the street and a major pedestrian generator to be effective; reserved-lane operations must not affect reverse-flow traffic and should be physically separated from peak-direction traffic to be effective; contraflow lanes usually have safety problems during off-peak hours or where major turning movements or pedestrian activity exists; concurrent-flow lanes usually need major transit use or a large increase in occupancy to be effective; and finally, a much greater effort must be made by traffic engineers, planners, and researchers to obtain pertinent information about HOV preferential treatments. Volume 2 of this report (available from the New Jersey Department of Transportation) contains a comprehensive bibliography along with a listing of each HOV treatment cited, including the year implemented, size, priority cutoff, hours of operation, current status, and any before-and-after data concerning the impacts that the treatments may have had.

This paper appears in Transportation Research Record No. 1181, Urban Traffic Systems and Parking. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01416541

p. 25-37

1988

Transportation Research Record

0309047501

References (3) ; Tables (10)

Contraflow lanes; High occupancy vehicle lanes; High occupancy vehicles; Impact studies; Park and ride; Ramps; Traffic lanes; Traffic restraint; Transit malls

Separation; Vehicle restrictions

Highways; Operations and Traffic Management; I73: Traffic Control

TRIS, TRB, ATRI

Aug 31 1989 12:00AM

• ACCOMMODATING TRANSIT IN TRANSYT
• ARTERIAL PRIORITY OPTION FOR THE TRANSYT-7F TRAFFIC-SIGNAL-TIMING PROGRAM
• EVALUATION OF THE COST-EFFECTIVENESS OF HOV LANES
• FORECASTING USE ON PROPOSED HIGH-OCCUPANCY-VEHICLE FACILITIES IN ORANGE COUNTY, CALIFORNIA
• MAXBAND-86: PROGRAM FOR OPTIMIZING LEFT-TURN PHASE SEQUENCE IN MULTIARTERIAL CLOSED NETWORKS
• METHODOLOGY FOR ESTIMATING URBAN ROADWAY SYSTEM CONGESTION
• PARKING SUBSIDIES AND THE DRIVE-ALONE COMMUTER: NEW EVIDENCE AND IMPLICATIONS